Tom Hanks is set to become a grandfather again - his son Colin's wife is expecting their second child.

Samantha Bryant showed off a large baby bump as she and actor Colin Hanks attended the opening night of Tom's Broadway play Lucky Guy on Monday (01Apr13), and the family can't wait to meet the new addition.

The King Kong star's stepmum, Tom's wife Rita Wilson, tells UsMagazine.com, "(I'm) so excited! Very beyond (excited)!"

Colin became a first-time dad in 2011 when his wife gave birth to daughter Olivia Jane, almost exactly nine months after they wed.